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Expired, full termArchive

X-ray film processor

US 4,086,607 A · Assignee: Durr - Dental KG. · Inventors: Muller; Mathias

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Overview

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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed December 19, 1974 and granted April 25, 1978. A patent filed before June 8, 1995 lasts 17 years from grant or 20 from filing, whichever is longer, so its term ended April 25, 1995.
  • Any extension is capped at five years, so it can't still be in force.
  • We haven't checked its US family, and a later related patent could still be in force. We check US rights only.
FiledDecember 19, 1974
GrantedApril 25, 1978
Term endedApril 25, 1995
Application number05/534686
Classification (CPC)G03D3/132 +1 more
Length18 pages

Timeline

Timeline From USPTO dates

1975197819811984198719901993Application filedDec 19, 1974Patent grantedApril 25, 1978Term endedApril 25, 1995

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